JAC Truck HFC4DA1-2C Engine Fault Codes DTC
P0030 – The linear oxygen sensor heater circuit is open
P0031 – The linear oxygen sensor heater circuit is short to ground
P0032 – The linear oxygen sensor heater circuit is short to battery
P0045 – EGR valve circuit is open
P0046 – Overtemperature of EGR valve bridge-H chip
P0047 – EGR valve circuit is short to ground
P0048 – EGR valve circuit is short to power supply
P0068 – Short-term drifting error in the process of throttle offset self-adaption
P0069 – The absolute difference between intercooler downstream air pressure and ambientpressure is unreliable
P0070 – Reliability check function for ambient temperature
P0072 – Too low ambient temperature
P0073 – Too high ambient temperature
P0087 – The minimum rail pressure is below the lower limit
P0088 – The maximum rail pressure is above the upper limit
P0097 – The signal level of intercooler downstream temperature is too low
P0098 – The signal level of intercooler downstream temperature is too high
P00BE – The original value of fuel rail pressure is incoherent
P0100 – The supply voltage of air flow sensor exceeds the limit
P0101 – Timeout error of air flow sensor hardware signal
P0102 – The sensitivity deviation of air flow sensor is below the lower limit
P0103 – The sensitivity deviation of air flow sensor is above the upper limit
P010C – The signal level measured by air flow sensor is too low
P010D – The signal level measured by air flow sensor is too high
P0112 – The voltage is below the lower limit of intake air temperature sensor
P0113 – The voltage is above the upper limit of intake air temperature sensor
P0116 – Error reported in dynamic reliability test of coolant temperature sensor
P0117 – Coolant temperature signal level is too low (downstream)
P0118 – Coolant temperature signal level is too high (downstream)
P0119 – Error reported in static reliability test of coolant temperature sensor
P0122 – The signal level of accelerator pedal position sensor 1 is relatively low
P0123 – The signal level of accelerator pedal position sensor 1 is relatively high
P0127 – The signal level of air temperature sensor is relatively high
P0128 – Closed-loop control is actuated due to too low coolant temperature
P0131 – Oxygen sensor IAIPUNVG point is short to ground
P0132 – Oxygen sensor IAIPUNVG point is short to battery
P0168 – The signal level of fuel temperature sensor is relatively high
P0182 – The signal level of fuel temperature sensor is below the lower limit
P0183 – The signal level of fuel temperature sensor is above the upper limit
P0191 – The uncorrected rail pressure value is above the upper limit of drift
P0192 – The voltage of fuel rail pressure sensor is below the lower limit
P0193 – The voltage of fuel rail pressure sensor is above the upper limit
P0194 – The uncorrected rail pressure value is below the lower limit of drift
P0195 – Engine oil temperature signal fault on CAN
P0196 – The oil temperature signal is unreliable
P0197 – The oil temperature signal level is too low
P0198 – The oil temperature signal level is too high
P0201 – The 1 cylinder fuel injector circuit is open
P0202 – The 2 cylinder fuel injector circuit is open
P0203 – The 3 cylinder fuel injector circuit is open
P0204 – The 4 cylinder fuel injector circuit is open
P0205 – The 5 cylinder fuel injector circuit is open
P0206 – The 6 cylinder fuel injector circuit is open
P020A – An error is reported when the time for electrifying the 1 cylinder reaches to the maximum
P020B – An error is reported when the time for electrifying the 2 cylinder reaches to the maximum
P020C – An error is reported when the time for electrifying the 3 cylinder reaches to the maximum
P020D – An error is reported when the time for electrifying the 4 cylinder reaches to the maximum
P020E – An error is reported when the time for electrifying the 5 cylinder reaches to the maximum
P020F – An error is reported when the time for electrifying the 6 cylinder reaches to the maximum
P0215 – Avoid resonance of double mass flywheel when stopping
P0219 – Overspeed protection for engine parts
P0222 – The signal level of accelerator pedal position sensor 2 is relatively low
P0223 – The signal level of accelerator pedal position sensor 2 is relatively high
P022A – EGR valve circuit is open
P022B – EGR valve circuit is short to ground
P022C – EGR valve circuit is short to power supply
P022E – The signal level at the output position of EGR cooling bypass valve position sensoris below the lower limit
P022F – The signal level at the output position of EGR cooling bypass valve position sensoris above the upper limit
P0234 – The actual air intake flow is greater than the target set by system
P0237 – The original voltage of intercooler downstream air pressure sensor is below thelower limit
P0238 – The original voltage of intercooler downstream air pressure sensor is above theupper limit
P023D – The long-term jitter of EGR valve exceeds the limit
P023E – The short-term jitter of EGR valve exceeds the limit
P024A – An error is reported when the temperature of EGR cooler bypass valve inelectrifying phase is too high
P024E – The signal level measured by EGR cooler bypass valve position sensor is below the limit
P024F – The signal level measured by EGR cooler bypass valve position sensor is above the limit
P0251 – The fuel metering unit circuit is open
P0252 – The temperature of fuel metering unit driver module is too high
P0253 – The fuel metering unit circuit is short to ground
P0254 – The fuel metering unit circuit is short to power supply
P0255 – Poor contact between ECU and fuel metering unit
P025C – The voltage of fuel metering unit is below the lower limit
P025D – The voltage of fuel metering unit is above the upper limit
P0263 – An error is reported when the electrifying time reaches to the maximum
P0266 – An error is reported when the electrifying time reaches to the maximum
P0269 – An error is reported when the electrifying time reaches to the maximum
P0272 – An error is reported when the electrifying time reaches to the maximum
P0275 – An error is reported when the electrifying time reaches to the maximum
P0278 – An error is reported when the electrifying time reaches to the maximum
P0299 – The positive deviation of pressure controller is above the upper limit
P0335 – No signal from crankshaft
P0336 – Crankshaft speed signal is irrational
P0339 – Camshaft speed signal is irrational
P0340 – No signal from camshaft
P0341 – The offset angle of camshaft is too large
P0380 – The preheating indicator light output circuit is high
P0382 – The preheating indicator light output circuit is low
P0383 – EGR valve circuit is short to ground
P0384 – EGR valve circuit is short to power supply
P0401 – The actual air intake flow is greater than the target set by system
P0402 – The actual air intake flow is less than the target set by system
